massless

English

Etymology

From mass +‎ -less.

Pronunciation

  • (US) IPA(key): /ˈmæs.ləs/, /ˈmæs.lɪs/
  • Rhymes: -æsləs

Adjective

massless (not comparable)

  1. Having no mass.
    The photon is a massless particle.
    • 2014, Mark A. Cunningham, Neoclassical Physics, page 241:
      On the other hand, Pauli had just proposed a massless, chargeless, colorless, flavorless particle whose sole reason for existence was to preserve the principle of momentum conservation.

Antonyms

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Translations

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